{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:XRZYXMQJ5DHZEJ7CIMDEDYW2JT","short_pith_number":"pith:XRZYXMQJ","canonical_record":{"source":{"id":"2606.07151","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-05T11:08:22Z","cross_cats_sorted":[],"title_canon_sha256":"d97dde3c642840e97dd531a8cecf7b4e39adad2da53ce78cbf2794732faf1c3d","abstract_canon_sha256":"bcf2ff023b7f2cf3f7b340571d6d716f23c2b0dafbe5d0ca317768e12c2567e2"},"schema_version":"1.0"},"canonical_sha256":"bc738bb209e8cf9227e2430641e2da4cd286457ea02915541c8bbca1ed851523","source":{"kind":"arxiv","id":"2606.07151","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.07151","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"2606.07151v1","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07151","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"XRZYXMQJ5DHZ","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_16","alias_value":"XRZYXMQJ5DHZEJ7C","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_8","alias_value":"XRZYXMQJ","created_at":"2026-06-08T01:04:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:XRZYXMQJ5DHZEJ7CIMDEDYW2JT","target":"record","payload":{"canonical_record":{"source":{"id":"2606.07151","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-05T11:08:22Z","cross_cats_sorted":[],"title_canon_sha256":"d97dde3c642840e97dd531a8cecf7b4e39adad2da53ce78cbf2794732faf1c3d","abstract_canon_sha256":"bcf2ff023b7f2cf3f7b340571d6d716f23c2b0dafbe5d0ca317768e12c2567e2"},"schema_version":"1.0"},"canonical_sha256":"bc738bb209e8cf9227e2430641e2da4cd286457ea02915541c8bbca1ed851523","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-08T01:04:49.333222Z","signature_b64":"4Utthy3UdaqYjrrN9vO2RSxXFo92QdBA+Vy2s7oqlsyhyBcL9v4lRxZ0o4g4OEF4WnmNXDe1IVeWs3IsSst9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc738bb209e8cf9227e2430641e2da4cd286457ea02915541c8bbca1ed851523","last_reissued_at":"2026-06-08T01:04:49.332451Z","signature_status":"signed_v1","first_computed_at":"2026-06-08T01:04:49.332451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.07151","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-08T01:04:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ko5f86TqLfKgFoBgTDrk/bqQCuZCAEV/osJXEwV3wJ3nE2BaQEQaslskgyOuwOMiUHo1RPHHAyNdMNKJKWDFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T09:48:43.988009Z"},"content_sha256":"845e8fac991be6fe021b0e57b1c8084a9d289c7172f8bb9b50fda1a8e8f2e8b5","schema_version":"1.0","event_id":"sha256:845e8fac991be6fe021b0e57b1c8084a9d289c7172f8bb9b50fda1a8e8f2e8b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:XRZYXMQJ5DHZEJ7CIMDEDYW2JT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geodesics of Dynamic Graphs for Regime Change Detection","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"\\'Etienne Voutaz, Pascal Frossard, William Cappelletti","submitted_at":"2026-06-05T11:08:22Z","abstract_excerpt":"Traditional change point detection in dynamic networks assumes abrupt transitions between stationary states, overlooking scenarios of continuous evolution which arise in most real-world applications, such as social networks or physical systems. We address this gap by formally defining regimes as periods of coherent dynamics in temporal graphs, which we characterize as trajectories along geodesics in a suitably defined graph space. This original perspective allows us to define regime changes as significant drifts in dynamics, either toward new trajectories or with pace changes. We leverage grap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07151","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.07151/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-08T01:04:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iHQSytF2fTLfPg8BONZx1MF1C3OgRM7lXW8PYb5yhO4GiK7yDw9FZBluCbL/Jy+GNGFKBBJTciXGKdz13x1aBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T09:48:43.988394Z"},"content_sha256":"e38b103b848ad1b7a8ce4cabe12126065995c2303c36a71d0789d20432d4c9b8","schema_version":"1.0","event_id":"sha256:e38b103b848ad1b7a8ce4cabe12126065995c2303c36a71d0789d20432d4c9b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/bundle.json","state_url":"https://pith.science/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-28T09:48:43Z","links":{"resolver":"https://pith.science/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT","bundle":"https://pith.science/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/bundle.json","state":"https://pith.science/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XRZYXMQJ5DHZEJ7CIMDEDYW2JT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XRZYXMQJ5DHZEJ7CIMDEDYW2JT","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"bcf2ff023b7f2cf3f7b340571d6d716f23c2b0dafbe5d0ca317768e12c2567e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-05T11:08:22Z","title_canon_sha256":"d97dde3c642840e97dd531a8cecf7b4e39adad2da53ce78cbf2794732faf1c3d"},"schema_version":"1.0","source":{"id":"2606.07151","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.07151","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"2606.07151v1","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.07151","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"XRZYXMQJ5DHZ","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_16","alias_value":"XRZYXMQJ5DHZEJ7C","created_at":"2026-06-08T01:04:49Z"},{"alias_kind":"pith_short_8","alias_value":"XRZYXMQJ","created_at":"2026-06-08T01:04:49Z"}],"graph_snapshots":[{"event_id":"sha256:e38b103b848ad1b7a8ce4cabe12126065995c2303c36a71d0789d20432d4c9b8","target":"graph","created_at":"2026-06-08T01:04:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.07151/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Traditional change point detection in dynamic networks assumes abrupt transitions between stationary states, overlooking scenarios of continuous evolution which arise in most real-world applications, such as social networks or physical systems. We address this gap by formally defining regimes as periods of coherent dynamics in temporal graphs, which we characterize as trajectories along geodesics in a suitably defined graph space. This original perspective allows us to define regime changes as significant drifts in dynamics, either toward new trajectories or with pace changes. We leverage grap","authors_text":"\\'Etienne Voutaz, Pascal Frossard, William Cappelletti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-05T11:08:22Z","title":"Geodesics of Dynamic Graphs for Regime Change Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.07151","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:845e8fac991be6fe021b0e57b1c8084a9d289c7172f8bb9b50fda1a8e8f2e8b5","target":"record","created_at":"2026-06-08T01:04:49Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"bcf2ff023b7f2cf3f7b340571d6d716f23c2b0dafbe5d0ca317768e12c2567e2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-05T11:08:22Z","title_canon_sha256":"d97dde3c642840e97dd531a8cecf7b4e39adad2da53ce78cbf2794732faf1c3d"},"schema_version":"1.0","source":{"id":"2606.07151","kind":"arxiv","version":1}},"canonical_sha256":"bc738bb209e8cf9227e2430641e2da4cd286457ea02915541c8bbca1ed851523","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc738bb209e8cf9227e2430641e2da4cd286457ea02915541c8bbca1ed851523","first_computed_at":"2026-06-08T01:04:49.332451Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-08T01:04:49.332451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4Utthy3UdaqYjrrN9vO2RSxXFo92QdBA+Vy2s7oqlsyhyBcL9v4lRxZ0o4g4OEF4WnmNXDe1IVeWs3IsSst9CQ==","signature_status":"signed_v1","signed_at":"2026-06-08T01:04:49.333222Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.07151","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:845e8fac991be6fe021b0e57b1c8084a9d289c7172f8bb9b50fda1a8e8f2e8b5","sha256:e38b103b848ad1b7a8ce4cabe12126065995c2303c36a71d0789d20432d4c9b8"],"state_sha256":"3dee94ed4a9a1dee3d829dc6671ff741eaf768a322dea86c39e421b0b669f508"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O/uMXSDNYDNYb7kC73a8/unsQDqK+ncI0MBOwyqRc/pkHORqr0cNpQnZf7y6SRn9Uw3KSS1fp+h3nXFQK5ItCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T09:48:43.990277Z","bundle_sha256":"09a2a28b4f7af247a15a453221bae8fe825b2ff4b45bc09026a1e65b47df34a2"}}